I recently have been reading Hugo Award Novels and recommend Roger Zelazny's This Immortal which is good enough to have shared the award with Dune in 1965. Lord of Light is also a great read and won a Hugo in 1968. Clifford Simak's Way Station, Phillip K. Dick's Man in the High Castle, and Walter Miller's Canticle for Leibowitz are other great Hugo novels from the early 1960's that tend to be overshadowed by more famous authors from that period such as Heinlein (not that I wouldn't recommend The Moon is a Harsh Mistress if you haven't read it).
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